Sanitaby lift valve



Maih 8, 1932. A J NSEN 1,848,632

SANITARY LIFT VALVE Filed Jan. 24. 1928 3 Sheets-Sheet 1 INVENT OR.

M j BYd ATTORNEYS.

March 8, 1932. JENSEN 1,848,632

SANITARY LIFT VALVE Filed Jan. 24, 1928 3 Sheets-Sheet 2 I N VEN TOR. WW

:7 BY W hwd/fl ATTOZNE YS.

Patented Mar. 8, 1932 UNITED STATES .AAGE JENSEN, OF LOS ANGELES, CALIFORNIA SANITARY LIFT VALVE Application filed January 24, 1928. Serial No 249,100.

This invention relates to sanitary lift valves intended for handling food preparations, and especially milk and cream. The object of the invention is to provide a valve and operating mechanism therefor which can easily be taken apart without the use of tools, and which is sanitary in the extreme, durable, and simple and economical in constrution.

The design of sanitary valves for handling liquid food preparations has in recent years tended towards highly expensive construction, due to efforts to comply with requirements of the various boards of health, who do not stop to figure the costs. The result has been the appearance on the market of sanitary valves costing several times what is necessary to meet legitimate requirements for sanitation.

The present valve is especially intended to be mounted in the discharge orifice of tanks or reservoirs. It is of the bevel-seated, check type, which closes or opens on the inside of the container by means of an adjustable lift rod. This rod is actuated by a lever handle which is pivoted on a bracket fastened to the walls of the container at a point above the normal level of the liquid therein.

In the accompanying drawings,

Fig. 1 shows a vertical sectional view through a portion of a container, illustrating a preferred type of my valve mechanism;

Fig. 2 shows a plan view of the operating handle;

Fig. 3 shows a sectional view in plan through the lower portion of the valve, taken on the line IIIIII of Fig. 1;

Fig. 4 shows a side elevation of the handle and connected parts;

Fig. 5 shows a similar view with the handle in a different position;

Fig. 6 shows a sectional view through a part of the handle, showing the manner of retaining the handle removably in place on its supporting stud;

Fig. 7 shows a vertical sectional view of the lower portion of a container, illustrating a slightly modified form of valve seat from that shown in Fig. 1;

Fig. 8 shows a sectional view taken through the upper portion of a container, illustrating a modified arrangement of the valveoperating mechanism, whereby the handle may be placed on the outside of the tank;

Fig. 9 shows a side elevation of the handle employed in connection with the form illustrated in Fig. 8;

Fig. 10 shows a side elevation, viewing the operating mechanism from the interior of the tank; and

Fig. 11 shows a cross-section on the line XI-XI of Fig. 8.

Considering now the form of mechanism illustrated in Figs. 1 to 6 inclusive, I show a portion of a container, A, having the discharge opening formed in its bottom wall, said bottom wall surrounding the opening being inclined as indicated at B. Into this discharge opening is fitted a spigot 10 formed at its upper end with an inclined ground seat for the valve. This spigot is fitted in place preferably by means of a seal 11 and locked by means of a washer 12 and a nut 13. An elbow 14 is connected with said spigot.

The valve proper comprises a head portion 15, rounded on top and having a ground inclined surface to co-operate with the valve seat. Below the ground surface the valve has a spider-like guide portion 16 fitted within the spigot. On the head portion is an extended rim 17 which serves as a protection for the ground seat on the valve during handling or shipping of the valve. The head of the valve carries a loop or eye 18 to receive a hook formed on the lower end of a lift rod 19. This lift rod is screwthreaded at its upper end and fits adjustably into a socket 20 on an upper lift rod member 21. This upper lift rod member has an elongated loop or eye 22 in its upper end to receive a pin 23, eccentrically arranged on a handle 24. The said handle 24 is pivotally mounted on a stud 25, said stud being formed upon a base plate 26, which base plate is fastened to the interior of the container A by means of screws 27. This stud 25 has a circumferential groove 28 (best shown in Fig. 6) with which a locking pin 29 carried by the handle is adapted to co-operate. When the pin 29 is lined up with an outlet groove 30, the said handle can be detached from the stud.

The handle carries a lock 31 which is adapted to contact with a stop 32 formed on the base 26 when the handle is in the position shown in Fig. 5. In this position the valve has been raised, and will be retained in open position by means of this stop. In clos ng the valve, the handle is moved to the position shown in Fig. 4, and if it is desired to lock the valve in closed position, the handle can be moved still further downwardly, until all of the centers of the various connections are in line. It may be desirable in .many instances to so look the valve in closed position; as, for instance, where the mechanism is used in a portable tank.

The eccentrically mounted pin 23 is provided with an elongated head 33 which is normally disposed at an angle to the elongated opening in the eye 22 so as to keep the parts together. By bringing the opening in the eye and the head 33 into parallelism, the parts can be readily separated.

In Fig. 7 I show a different manner of forming the valve seat. Here the spigot 10 is provided with flanges 34, which are riveted to the outside of the container, and a flush joint is made on the interior of the container by using soldered or fusible metal, as indicated at 35. In Figs. 8 to 11 inclusive I show a modified arrangement of valve operating mechanism, wherein the handle 24 can be located on the exterior of the container. In this form the said handle is carried upon a fulcrum shaft 36 which extends through the wall of the container and is housed in a sleeve 37. In other respects the construction and operation are substantially the same as described in connection with Figs. 4 and 5.

Various changes in the construction and arrangement of the several parts herein shown and described may be employed without departing from the spirit of my inven -tion as disclosed in the appended clalms.

' Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. The combination with a receptacle having an opening in the bottom thereof of a valve disposed in said opening; an operating handle pivotally secured to the inner wall of the receptacle above the normal fluid level thereof: an eccentric pin on said handle between the operating end of said handle and the axis thereof, and a lift rod secured to said valve and to said eccentric pin for the purpose specified.

2. The combination with a receptacle having an opening in the bottom thereof, of a valve loosely disposed in said opening; means permitting said valve to be completely removed from said opening by upward movement thereof: an operating handle pivotally secured to the inner wall of the receptacle above the normal fluid level thereof and operating in a plane approximately parallel with that of the said Wall; an eccentric pin on said handle, and a lift rod secured to said valve and to said eccentric pin, the weight of said handle and the eccentricity of said pin being so related to each other that the weight of the handle will lock the Valve and maintain it locked against stresses imposed on said lift rod.

3. The combination with a receptacle having an opening in the bottom thereof of a valve disposed in said opening; an operating handle pivotally and detachably secured to the inner wall of the receptacle above the normal fluid level of the same and operating in a plane approximately parallel with that of the said wall; an eccentric pin on said handle between the ends thereof, and a lift rod detachably secured to said eccentric pin and to said valve whereby movement of said handle will open or close said valve, the weight of said handle and the eccentricity of said pin being so related to each other that the weight of the handle will lock the valve and maintain it locked against stresses imposed on said lift rod.

4. The combination with a receptacle having an opening in the bottom thereof of a valve disposed in said opening; an operating handle pivotally and detachably mounted on the inner wall of said receptacle above the normal fluid level thereof and operating in a plane substantially parallel to that of said wall; an eccentric pin mounted on said handle; a lift rod detachably secured to said eccentric pin and said valve whereby movement of said handle will open or close the said valve, the weight of said handle and the eccentricity of said pin being so related to each other that the'weight of the handle will lock the valve and maintain it locked against stresses imposed on said lift rod, and means to lock said valve in open position.

5. A valve for sanitary receptacle, comprising a spigot adapted to be mounted in the bottom of a receptacle; said spigot having a valve seat formed on the upper edge thereof; a valve having a seat engaging portion disposed in said valve seat; said valve having an enlarged head of greater diameter than the seat engaging portion and an annular rim on said head overlying said valve seat in spaced relation with the same.

6. A valve for sanitary receptacle, comprising a spigot adapted to be mounted in the bottom of a receptacle; an annular valve seat formed on the upper edge of said spigot; a valve loosely disposed in said valve seat and having a seat engaging portion; means to guide said valve onto and away from said valve seat; an enlarged head on said valve of greater diameter than the seat engaging portion and a rim on said head extending horizontally beyond the valve seat and adapted to overlie said valve seat in spaced relation with the latter to protect the same.

7. The combination with a sanitary receptacle having an inclined bottom and an opening in said bottom of a spigot extending through said opening and secured therein; an annular valve seat in the upper end of said spigot; a valve disposed on said valve seat and having a seat engaging portion; means to guide said valve onto or away from said valve seat; an enlarged head on said valve of greater diameter than the seat engaging portion projecting horizontally beyond the valve seat and adapted to overlie said valve seat in spaced relation with the latter to protect the same, and means on said head whereby said valve may be opened or closed.

8. The combination with a receptacle hav ing an opening in the bottom thereof of a valve disposed in said opening; a stud secured to the inner wall of said receptacle above the fluid level in the receptacle therefor; an annular groove on said stud, and a second groove leading from said annular groove to the end of said stud; a handle pivoted on said stud having an internal projection therein extending into said annular groove; an eccentric pin on said handle and a lift rod connecting said eccentric pin and valve.

9. Lifting means for valves of the character described, comprising a stationary stud having an annular groove thereon; a second groove leading from said annular groove to the extremity of the stud; a handle having a bore therethrough mounted on said stud; an internal projection in said bore extending into said annular groove, and an eccentric pin on said handle.

10. The combination with a receptacle hav ing an opening in the bottom thereof of a valve disposed in said opening with a lift rod secured thereto and extending upwardly above the fluid level in the receptacle; a stud said handle, and an eccentric pin on said handle for the purpose specified.

12. In combination with a receptacle having an opening in its bottom, a bevel-seated check valve for controlling said opening, a lift rod connected to said valve, said lift rod including means for adjusting the length thereof, a stud fixed to the receptacle near the upper portion thereof, an operating handle rotatably mounted on the stud in a plane approximately parallel with the adjacent wall of the receptacle, and an eccentrically arranged pin carried by the handle and connected to the upper end of said rod, said rod being adapted to positively hold the valve closed and movable by the handle and the eccentric pin to a position for locking the valve closed.

13. In combination with a receptacle having an opening in its bottom, a bevel-seated check valve controlling said opening, a lift rod detachably connected to said valve, a stud fixed to the receptacle near the upper part thereof, a handle rotatably mounted on the stud, an elongated eye in the upper end of said rod, and an eccentrically arranged pin on said handle having an elongated head to removably receive the eye.

AAGE JENSEN.

secured to the inner wall of the receptacle; a

handle having a bore therethrough mounted over said stud, said handle being free to rotate on said stud in a plane approximately parallel with that of the said wall; a projection on said handle, stops on said stud adapted to limit the turning movement of said handle and an eccentric pin on said handle secured to said lift rod and cooperating therewith to form a lock for holding the valve closed.

11. Lifting means for valves of the character described comprising a stationary stud; a handle having a bore therethrough mounted on said stud; there being an annular groove in said stud and a second groove leading from said annular groove to the extremity of the stud; an internal projection in said bore extending into said annular groove; an external projection on said handle; a pair of stops mounted on said stud adapted to engage s aid external projection to limit the movement of 

